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  • Book Overview & Buying PostgreSQL 16 Administration Cookbook
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PostgreSQL 16 Administration Cookbook

PostgreSQL 16 Administration Cookbook

By : Gianni Ciolli, Boriss Mejías, Jimmy Angelakos, Vibhor Kumar, Simon Riggs
4.8 (26)
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PostgreSQL 16 Administration Cookbook

PostgreSQL 16 Administration Cookbook

4.8 (26)
By: Gianni Ciolli, Boriss Mejías, Jimmy Angelakos, Vibhor Kumar, Simon Riggs

Overview of this book

PostgreSQL has seen a huge increase in its customer base in the past few years and is becoming one of the go-to solutions for anyone who has a database-specific challenge. This PostgreSQL book touches on all the fundamentals of Database Administration in a problem-solution format. It is intended to be the perfect desk reference guide. This new edition focuses on recipes based on the new PostgreSQL 16 release. The additions include handling complex batch loading scenarios with the SQL MERGE statement, security improvements, running Postgres on Kubernetes or with TPA and Ansible, and more. This edition also focuses on certain performance gains, such as query optimization, and the acceleration of specific operations, such as sort. It will help you understand roles, ensuring high availability, concurrency, and replication. It also draws your attention to aspects like validating backups, recovery, monitoring, and scaling aspects. This book will act as a one-stop solution to all your real-world database administration challenges. By the end of this book, you will be able to manage, monitor, and replicate your PostgreSQL 16 database for efficient administration and maintenance with the best practices from experts.
Table of Contents (15 chapters)
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13
Other Books You May Enjoy
14
Index

Logical replication

Logical replication allows us to stream logical data changes between two nodes. By logical, we mean streaming changes to data without referring to specific physical attributes such as a block number or row ID.

These are the main benefits of logical replication:

  • Performance is roughly two times better than that of the best trigger-based mechanisms.
  • Selective replication is supported, so we don’t need to replicate the entire database.
  • Replication can occur between different major releases, which can allow a zero-downtime upgrade.

PostgreSQL provides a feature called logical decoding, which can be used to stream a set of changes out of a primary server. This allows a primary and, since PostgreSQL 16, a standby to become a sending node in logical replication. The receiving node uses a logical replication process to receive and apply those changes, thereby implementing replication between those two nodes.

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